content: /*
   * Copyright 2016-present David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.rxjava3.basetypes;
  
  import org.reactivestreams.Subscriber;
  
  import io.reactivex.rxjava3.core.Scheduler;
  import io.reactivex.rxjava3.operators.QueueSubscription;
  import io.reactivex.rxjava3.internal.subscribers.BasicFuseableSubscriber;
  
  /**
   * Call cancel from downstream on the specified Scheduler.
   *
   * @param <T> the value type
   */
  final class SoloUnsubscribeOn<T> extends Solo<T> {
  
      final Solo<T> source;
  
      final Scheduler scheduler;
  
      SoloUnsubscribeOn(Solo<T> source, Scheduler scheduler) {
          this.source = source;
          this.scheduler = scheduler;
      }
  
      @Override
      protected void subscribeActual(Subscriber<? super T> s) {
          source.subscribe(new UnsubscribeOnSubscriber<T>(s, scheduler));
      }
  
      static final class UnsubscribeOnSubscriber<T> extends BasicFuseableSubscriber<T, T>
      implements Runnable {
  
          final Scheduler scheduler;
  
          UnsubscribeOnSubscriber(Subscriber<? super T> downstream, Scheduler scheduler) {
              super(downstream);
              this.scheduler = scheduler;
          }
  
          @Override
          public void onNext(T t) {
              downstream.onNext(t);
          }
  
          @Override
          public int requestFusion(int mode) {
              QueueSubscription<T> qs = this.qs;
              if (qs != null) {
                  int m = qs.requestFusion(mode);
                  sourceMode = m;
                  return m;
              }
              return NONE;
          }
  
          @Override
          public T poll() throws Throwable {
              return qs.poll();
          }
  
          @Override
          public void cancel() {
              scheduler.scheduleDirect(this);
          }
  
          @Override
          public void run() {
              super.cancel();
          }
      }
  }
  